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Home > Success Center > Server & Application Monitor (SAM) > SAM - Knowledgebase Articles > Ephemeral Port Exhaustion

Ephemeral Port Exhaustion


There is a problem in SAM port monitors where they go intermittently unknown.


All versions of SAM


Error found in C:\ProgramData\Solarwinds\Collector\Logs




2013-07-23 07:31:21,331 [44] FATAL SolarWinds.Orion.Core.Common.RemoteFeatureManager - Unable to load Feature Manager data from SWIS

System.InsufficientMemoryException: Insufficient winsock resources available to complete socket connection initiation. ---> System.Net.Sockets.SocketException: An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full


You can also verify the issue via running the following command from the command prompt:


Netstat -aon


The output of said command will show you the port utilization.  The expected result is that they have page upon page of ports that are in a TimeWait or a CloseWait state.


Please following the instructions on the following Mind Touch article:


How to increase ephemeral port allowances


*****Pushing out the port allowances is not a true fix in most cases. Please see the following article to troubleshoot the cause of the increased TCP port usage:


Check Emphemeral Ports in use


 For more information, you may visit: 

Error Message: The name limit for the local computer network adapter card was exceeded  (© 2016 Microsoft, available at, obtained on November 23, 2016.)



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